I'd happily upgrade my MPVI1 to the MPVI2 if I was able to tune my 2005 4Runner. It has the 1GR-FE engine. HPT has support for the 05-15 Tacoma 4.0L V6 1GR-FE (same engine). Earlier this year I borrowed an MPVI2, read what I could, and sent it to [email protected] - the response was that they do not support it. Chris - any update? Thank you.